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12102402441 = 34034134147
BaseRepresentation
bin10110100010101110…
…00000000110001001
31011020102210202002110
423101113000012021
5144241203334231
65320524252533
7605623503063
oct132127000611
934212722073
1012102402441
115150544098
1224190a1149
1311ab43999c
1482b476733
154ac74c046
hex2d15c0189

12102402441 has 4 divisors (see below), whose sum is σ = 16136536592. Its totient is φ = 8068268292.

The previous prime is 12102402421. The next prime is 12102402443. The reversal of 12102402441 is 14420420121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12102402441 - 210 = 12102401417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102402443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017067071 + ... + 2017067076.

It is an arithmetic number, because the mean of its divisors is an integer number (4034134148).

Almost surely, 212102402441 is an apocalyptic number.

It is an amenable number.

12102402441 is a deficient number, since it is larger than the sum of its proper divisors (4034134151).

12102402441 is an equidigital number, since it uses as much as digits as its factorization.

12102402441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034134150.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12102402441 its reverse (14420420121), we get a palindrome (26522822562).

The spelling of 12102402441 in words is "twelve billion, one hundred two million, four hundred two thousand, four hundred forty-one".

Divisors: 1 3 4034134147 12102402441